In Etherpad UeberDB < 0.4.4, due to MySQL omitting trailing spaces on char / varchar columns during comparisons, retrieving database records using UeberDB's MySQL connector could allow bypassing access controls enforced on key names. Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22784 Reference (s):
- https://github.com/ether/ueberDB/commit/e8b58d03534ade8d83c2d1946a8350a23952531e